High on the Chajnantor plateau in the Chilean Andes, the first antennas of the Atacama Large Millimeter/ submillimeter Array, or ALMA for short, move in unison.
Work progresses at a frantic pace in this ambitious project, which, in a few years from now, will consist of 66 antennas, working together at an altitude of 5000 metres. Once completed, ALMA will enable astronomers to study the cold Universe in unprecedented detail.

Credits and more information are available on: http://www.eso.org/public/videos/esocast17/